[Kos] tipped us about an article he made presenting his experiences in designing and implementing a core rope memory. This magnetic read-only memory (ROM), contrary to ordinary coincident-current ...

A string of magnetic cores and sense wires form a simple ROM arrangement, which though long-ago-superceded by semiconductor memory remains possible to recreate by the experimenter. It’s a path ...

Magnetic core memory gave way to a variety of technologies, leading to the current mixture of ROM, EEPROM and nonvolatile RAM (NVRAM), flash memory, SRAM, and dynamic RAM. Life was much easier ...